Baader Contrast Booster Filter - Round Mounted - FCB- Size:2" added to the inability to

added to the inability to utilize longer focal ratios for certain objects

Diffraction limited "on-axis" performance is a given

9 x 2 in (135 x 126 x 52 mm) in (135 mm)

25" eyepiece mount allows a variety of astronomical eyepieces to be used with the spotting scope

Baader Contrast Booster Filter - Round Mounted - FCB- Size:2" added to the inability toChoose either the Baader 1. 25" or 2" Round Mounted Filter from the dropdown About the Baader Contrast Booster Filter The Baader Contrast Booster Filter is much more than a simple minus violet filter. Based on the popular Baader Moon & Skyglow filter, the Baader Contrast Booster takes contrast enhancement and skyglow reduction to the maximum level possible from a filter. Not only does this filter deliver a significant enhancement to planetary and